Air-line oiler



Oct. 30, 1928. 1,689,780

G. w. HULSHIZER AIR LINE OILER Filed May25, 1927 Patented Oct. 30, 1928.

UNITED STATESPATENT OFFICE."-

GEoEeE w. HULSHIZER, 0E STEWARTSVILLE, NEW -JERSEY, AssiGNoETo INGEEsoLLRAND eoivrrAnY, 0E JEEsEY CITY, NEVJ JEEsEY; A CORPORATION OF NEWJERSEY.

AIR-LINE oIL R.

Application filed May 25, 1927. Serial No. 194,081.

This:invention relates to oiling devices, but more particularly to anair line oiler adapted to be attached to the pressure fluid supply lineleading from a source of supply to a fluid actuated machine,.such asa-rock drill, air motor and the like. 7 p

An ObJOOl? of the 1nvent1on is to supply lubricant in suitablequantities and n a no )erl Y atomized state to the workin Jarts of afluid actuated rock drill, or. other ma chine, thus actuated, throughtheagency of 'the pressure fluid flowing through the sup ply line.

A further object is to enable substantiallyv all of the'o1l to beexhausted from the oiler after each refilling, thus eliminating thenecessity for frequent interruptions in the drilling operation in orderto replenish the supply of oil in the reservoir.

Another object is to prevent an undesiraa ble flood of oil into thesupply lineduring the ino oerative period of the machine .to which theoil is being supplied.

Other objects will be in part obvious and in part pointed outhereinafter.

In the drawings, in which ence characters refer to similar parts,

Figure 1 is a sectional elevationvof the oiler attached to a pressurefluid supply line, and

Figure 2 s a transverse iview talten through Figure 1 on the line 2 2,looking in the directionindicated-by the arrows. 7

Referring to the drawings, A designates a casing comprising inthisins-tance a pair of sections Band C, the interior D ofwhich forms areservoir for oil or; other, suitable lubricant. The sections B and .0are preferably so formed that one will slightly overlap the other, thisisaccomplished in the present instance by forming an annular recess E inthe casing section C and into this recess E extends a flange F on thecasing section B. m v

Preferably the end surface G ofthe flange F abuts the end wall Hofthe-recess and these surfaces may be so machined as to form a fluidtight jointtherebetween to prevent leakage of oil and pressure fluidfrom the reservoirrD. r 1 v Extending into the casing sections andlocated preferably centrally with respect thereto are projections Jhaving bores K therethrough for the reception of a tube L which may besecured. at its ends to a 'milar referhose or pipe line 0 in anysuitable and well known manner. tube L thus forms a portion. of the hoseline for conveying pressure fluidfrom one see tion ofthe hoseline O tothe other.- I An additional function of the tube L is to holdthe casingsections B and C in fluid tightengagement with each other. This, in thepresent instance, is accomplished by forming a shoulder (2 near one endof the. tube to abut the casing section B and by threading the oppositeend of the tube as at R to receive a nut or nuts S which may be screwedfirmly against the casing section C. Suitable means are provided forestablishing communication between the interior of the tube L and thereservoir D for the pur-v pose of admitting pressure fluid into thereservoirD tofcreate a pressure on the sur-' face of the oil and-alsofor conveying oil in a suitably atomized stateifrom the reservoir intothe passageway P; To this end. a plurality of transverse passages 'T areformed in. the walls of the'tube L, preferably mid-way between the freeends of the projections J. On the tube L-is disposed a sleeve U whichmay abut with its ends the projections J and has anannular internalgroove V wherewith the passages T communicate with thei-r'outermostends. In-the present instance the sleeve U carries aneccentricallydisposed weight WV preferably formed integrallylwith the sleeve U andofa length to extend with its outermost end to a point near the wall ofthe reservoir TD. The weight is preferably of such proportions that thesleeve U will at all times be maintained in substantially the sameposition and'in this way also a recess X in; the. outermost portion ofthe weight -W will at all timesremain adjacent the lowermost side of thereservoir D. f

[The recessX in this instance comprises an outerthreaded portion Y andan inner smooth cylindrical portion Z which communicates with theannulargroove Vthrough a passage 5 adjacent the innerend of the recess X. i

The recess X is preferably of rather large 7 cross, sectional area andin the outer end thereofis screwed a plug 0 having a threaded flangedfor cooperation with the threaded.-

The' passageway P in the V portion Y of the recess and a central stem e.In the innermost end of-the stem 6 is formed J avvalve seat 7 whichregisters with a similar 55 a pressure on the surface'of the oil.

"end wall of the recess X, thus limitingthe in distance which the plug ainto the recess. I

In order to afford communication between the pasage b and the reservoirD, a plurality ofpassages are formed in the free end of in the stem (2to lead to the recess X and at the 1 outer-end of the plug are formedsimilar 'iassages y) for establishing communication between the recessand the reservoir. -In this instance the passages p open at their- Znouter ends into a small recess 9 in the outer end of the plug 0.

the oil and thus reduce it into a state in which it may be readilyconveyed to the machine to be lubricated, suitable absorbent material orfelt r is disposed in the recess X about the stem 6. The felt 7 may beof such quality that the oil may be readily forced therethrough and alsothat it will act to remove any foreign matter which may be entrained inthe-oil.

The oil may be introduced into the reservoir D through an aperture-s inthe casing A, in this instance, in the-"section C. The

aperture 3 comprises an inner threaded portion t and an outer smoothtapered portion u. A plug a screwed into the aperture 8 thus c0- operateswith the tapered portion u for sealing the reservoir j 1 To the end thatany pressure fluid which may remain entrapped in the reservoir D, afterthe supply of pressure fluid in the hose line has been cut oil, may begradually exhausted from the reservoir prior to the re filling of thesame a: passage to is formed in the casing section C to communicate atone end with the reservoir D and at its outer end with the taperedportion roof the aperture s. i f I The operation of the device is asfollows: Upon the admission of pressure fluid into the hose-line, aportion thereof will pass the passages T, 'Z), 0,, thence through therecess X in the passages p into the reservoir to create Pres sure fluidwill thus continue to flow into the reservoir through these passagesuntil the pressure within the reservoir reaches that valueiat whichitmay, together with the so pressure exerted by the spring 1:, overcomethe pressurein the hose line and close .the -valve Thereafter, when thedrill or inachine to which the pressure fluid is being supplied, is setin operation, the pulsations occurring in th'e pressure fluid willunseat may be screwed the valve and the air pulsating into and out oftherecess X through the passages and T will convey a portion of oil in theform of a mist into the passageway. P, At this point the oil will minglewith the pressure fluid and be carried thereby to therdrill.

By reason of the pressure which is maintained within the reservoir D thefelt 1" will at all times be saturated with oil and this way a supply oflubricant in suitable quantities will at all times be in readinessadjacent the passages 0- to be carried into the air cur-- rent flowingthrough the hose-line. Inthis way the oil will be conveyed from the resrvoir in uniform quantities and the chances of introducing an excessivequantity of oil into. the air. current are'thus eliminated;

After the last pulsations into the reservoir, that is, after the drillceases its 'ecipjrocations,'the pressure fluidjin the reservoir will beentrapped therein by the valve This In order to insure properatomization of is a desirable feature in oilers of this type since itprecludes the possibility of emptying the reservoir into the hose lineduring the inoperative period ofthe drill.

Pressure fluid will, of course also be entrapped in the reservoir afterthe supply oi oil has been exhausted therefrom. In such case, thepressure fluid may" be exhausted from the reservoir through thepassageway .u by partly'unscrewing the plug etc a point where thethreads of the plugfand the aperture s will still'be in engagement.providing an escape for the entrappedfpressure fluid in the mannerdescribed the plug '0 may beunscrewed with entire safety as thepressurefluid will be completely exhausted from the reservoir before theplug a is unscrewed from the aperture is.

I'claimi j v 1'. An air line oiler comprising a plurality of easingsections forming a reservoirffor oil, means for holding the sections influid tight engagement 'with each other, said means'havinga passagewayfor conveying pressure fluid through the casing, and means rotatableabout said means for conveying pressure fluid from the passageway intothe reservoir and oil from the reservoir into the passageway. 1 I r 2.An air lineoiler comprising aplurality By thus ion of easing sectionsforming a reservoii for ing sections forming afreservoir'for oil, in-'wai'dly extending hollow projections in the sections, a tube'in theprojections forming a passageway through the casing for pressure fluid,means on the tube forcing the adjacent ends of the sections into fluid,tight engagement with each other, a sleeve rotatable about the tubecarrying an eccentrically disposed weight adapted torock to thelowermost side of the reservoir, and passages in the tube and the weightconveying pressure fluid from the interior of the tube into thereservoir and oil from the reservoir into the tube tomingle with thepressure fluid flowing therethrough.

l. An air line oiler comprising two casing sections forming a reservoirfor oil, inwardly extending hollow projections in the sections,

a tube through the projections forming a passageway i'or pressurefluid,means on the tube for forcing the adjacent ends of the sections intofluid tight engagement with each other, said tube having a transversepassage, a sleeve on the tube between the projections carrying aneccentrically disposed weight wiereby the sleeve is rotated on the tube,a passage in the weight adapted to register with the transversepassagetor-conveying pressure fluid from the tube into the reservoir and oilfrom the reservoir into the tube and a spring pressed valve in-theweight controlling communication between the passages.

cent ends into fluid tight engagement-with each other, said tube havmg atransverse passage, a hollow sleeve rotatable on the tube carrying aneccentrically disposed weight adapted to rock to the lowermost side ofthe casing, said weight having a recess, a plug in the recess having apassage adapted to communicate with the passage in the tube forconveying pressure fluid and oil, a'spring-pressed valve in the plugcontrolling communication between the passages, and absorbent materialin the recess for insuring a uniform delivery of oil into the tube.

In testimony whereof I have signed this specification.

GEORGE YV. HULSHIZER

